User manual MAXTOR ST15150N INSTALLATION

[. . . ] Installation Guide ST15150W/WD/WC ST15150N/ND/DC BARRACUDA 4 Family 2 Barracuda 4 Installation Guide, Rev. E Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Initial setup information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] A SCSI "device" is any disc drive, scanner, tape backup unit, or other piece of hardware connected to your system using the SCSI bus. The top example in Figure 4 shows an internal hard disc at one end of the SCSI bus with the SCSI controller at the other end (both are terminated). The bottom example shows two additional SCSI devices connected externally--this means the SCSI controller is no longer on the end of the SCSI chain and should not be terminated. For information about how to terminate your drive, refer to the appropriate drive-specific section. Internal SCSI cable Internal SCSI device Internal SCSI device Terminate Internal SCSI cable Internal SCSI device Internal SCSI device Controller External SCSI cable Controller External SCSI device External SCSI device Terminate Figure 4. E Terminator power You usually will not need to change this option and can normally leave the drive configured as it was shipped from the factory. For information about how to change the terminator power option on your drive, refer to the appropriate drive-specific section. Synchronizing spindles (optional) If you are installing two or more Barracuda drives, you may synchronize their spindles to reduce the latency associated with switching from one drive to another. After connecting each drive with spindle sync cables, designate a master spindle sync reference source. This master source is usually a disc drive located on the same SCSI bus as the other drives you want to synchronize with. Refer to the Barracuda 4 Product Manual for information about using these commands. For information about how to synchronize the spindles for your drive, refer to the appropriate drive-specific section. Other applicable jumper options Barracuda 4 drives are designed for use in a variety of systems. Some installations may require you to change one or more of the other jumpers to meet specific Barracuda 4 Installation Guide, Rev. E 23 system requirements; however, in most cases, you will not need to change any of these jumpers for normal drive operation. Providing adequate cooling The enclosure design must ensure adequate cooling for the drive. The drive's product manual (83328880) describes how to evaluate the air-flow design. The evaluation consists of ensuring that the case temperature of certain critical components remains within acceptable limits during drive operation. We recommend orienting the drive or directing the air flow in a way that creates the least amount of air-flow resistance while providing air flow above the circuit boards and around the head and disc assembly (HDA). Also, choose the shortest possible path between the air inlet and exit. This minimizes the distance traveled by air that is heated by the drive and by other nearby heat sources. Figure 5 shows two design approaches with one or more fans used to generate air flow. The air-flow patterns can be created by the fans either pushing or drawing air. [. . . ] The ST15150WD drive should be configured with a jumper connecting J01 pins 1 and 3 (and no jumper on J01 pins 2 and 4) as illustrated in Figure 17. W/WD drives Power Connector J4 Pin 3 J01 J01 Pin 1 Pin 1 Pin 2 ST15150W/WD * Term. Setting terminator power jumpers Barracuda 4 Installation Guide, Rev. E 43 Synchronizing spindles Use pins 11 and 12 on the J5 connector to attach the spindle sync cable. See Figure 18. SCSI I/O Connector J5 Pin 1 DC Power Connector SSC J5 Spindle sync reference index signal (REFSIG+). [. . . ]